|Name|From|Until|Relationship with predecessor|
|---|---|---|---|
|Cosimo de' Medici (Pater Patriae)|1434|1 August 1464|Son of Giovanni di Bicci de' Medici who was not as prominently involved in Florentine politics, rather more involved in the financial area.|
|Piero I de' Medici (Piero the Gouty)|1 August 1464|2 December 1469|Eldest son of Cosimo de' Medici.|
|Lorenzo I de' Medici (Lorenzo the Magnificent)|2 December 1469|9 April 1492|Eldest son of Piero I de' Medici.|
|Piero II de' Medici (Piero the Unfortunate)|9 April 1492|8 November 1494|Eldest son of Lorenzo the Magnificent. Overthrown when Charles VIII of France invaded as a full republic was restored, first under the theocracy of Girolamo Savonarola and then statesman Piero Soderini.|
|Cardinal Giovanni de' Medici|31 August 1512|9 March 1513|Brother of Piero the Unfortunate, second son of Lorenzo the Magnificent. Elected to the Papacy, becoming Pope Leo X.|
|Giuliano de' Medici, Duke of Nemours|9 March 1513|17 March 1516|Brother of Cardinal Giovanni de' Medici, third son of Lorenzo the Magnificent.|
|Lorenzo II de' Medici, Duke of Urbino|17 March 1516|4 May 1519|Nephew of Giuliano de' Medici, Duke of Nemours, son of Piero the Unfortunate.|
|Cardinal Giulio de' Medici|4 May 1519|19 November 1523|Cousin of Lorenzo II de' Medici, Duke of Urbino, son of Giuliano de' Medici who was the brother of Lorenzo the Magnificent. Elected to the Papacy, becoming Pope Clement VII.|
|Cardinal Ippolito de' Medici|19 November 1523|24 October 1529|Cousin of Cardinal Giulio de' Medici, illegitimate son of Giuliano de' Medici, Duke of Nemours.|

Question: how many people were head of the medici longer than piero i de'medici?
Answer: 2